[−][src]Macro chainerror::derive_str_cherr
Convenience macro to create a "new type" T(String) and implement Display + Debug for T
Examples
derive_str_cherr!(Func2Error); fn func2() -> ChainResult<(), Func2Error> { let filename = "foo.txt"; do_some_io().map_err(mstrerr!(Func2Error, "Error reading '{}'", filename))?; Ok(()) } derive_str_cherr!(Func1Error); fn func1() -> Result<(), Box<Error>> { func2().map_err(mstrerr!(Func1Error, "func1 error"))?; Ok(()) }